[Event "URS-ch25 Quarterfinal"]
[Site "Minsk"]
[Date "1957.05.25"]
[Round "19"]
[White "Klavins, Janis"]
[Black "Ostrauskas, A"]
[Result "0-1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Nxe4 7. d4 d5 8. dxe5 Be6 9. c3 Be7 10. a4 b4 11. Nd4 Nxd4 12. cxd4 c5 13. f3 c4 14. Bc2 Nc5 15. Nd2 Nb7 16. f4 Qb6 17. Nf3 g6 18. Be3 b3 19. Bb1 h6 20. Qe1 a5 21. f5 gxf5 22. Nh4 f4 23. Rxf4 O-O-O 24. Nf5 Bg5 25. Rf3 Kb8 26. Rf1 Rdg8 27. Kh1 Bxe3 28. Qxe3 Rg5 29. Nxh6 Rh5 30. Rf6 R5xh6 31. Rxh6 Rxh6 32. Qxh6 Qxd4 33. Bh7 Qxb2 34. Re1 Qc3 35. Qh4 Qd2 36. Qg3 c3 37. h4 c2 38. Kh2 c1=Q 39. Rxc1 Qxc1 40. h5 Qh6 41. Qg8+ Ka7 42. g4 b2 43. Kg3 Qe3+ 44. Kh4 Qf2+ 45. Kg5 f6+ 0-1